Frictional Games does indeed have a follow-up to Amnesia: The Dark Descent. And apparently the game needs even more indie prowess, so the developer has enlisted the help of Dear Esther dev thechineseroom, too.

In fact, thechineseroom is developing A Machine For Pigs, which is set in the Amnesia universe (and carries the moniker in its title) but is not a direct sequel to Frictional’s horror game. As Joystiq reports, there’s no set release date yet, although the two companies are aiming to have it out in 2012 and hope for a launch that happens before the end of October.

It still sounds like A Machine For Pigs aims to be scary, although it doesn’t include the same characters as The Dark Descent. Here’s a description from Joystiq’s story:

Set in 1899, Amnesia: A Machine for Pigs follows the “wealthy industrialist” Oswald Mandus, who has returned home from “a disastrous expedition to Mexico, which has ended in tragedy.” Struck by a destructive fever, Mandus is haunted by dreams of a dark machine until he mysteriously regains consciousness. Months have passed, unbeknownst to the industry tycoon, and as he emerges from his slumber the roaring engine of a mysterious machine sputters to life.

Rest assured, we’ll be bringing you guys everything we can find about A Machine For Pigs as it becomes available.